CN101549985B - Calcination-free chemical gypsum dry mixed mortar used for plastering on inner walls - Google Patents
Calcination-free chemical gypsum dry mixed mortar used for plastering on inner walls Download PDFInfo
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- CN101549985B CN101549985B CN2009100144878A CN200910014487A CN101549985B CN 101549985 B CN101549985 B CN 101549985B CN 2009100144878 A CN2009100144878 A CN 2009100144878A CN 200910014487 A CN200910014487 A CN 200910014487A CN 101549985 B CN101549985 B CN 101549985B
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- China
- Prior art keywords
- plastering
- calcination
- inner walls
- mixed mortar
- chemical gypsum
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a calcination-free chemical gypsum dry mixed mortar used for plastering on inner walls, pertaining to the production field of dry mixed mortar. The mortar is produced by the following ingredients by weight proportion: 20-30 portions of chemical gypsum powder, 50-65 portions of aggregate, 10-15 portions of hydraulic cementing materials, 10-15 portions of unslaked lime and 0.02-1 portion of water retention agent and 0.05-1 portion of anticracking agent. Compared with the prior art, the calcination-free chemical gypsum dry mixed mortar used for plastering on inner walls ischaracterized by energy saving, environmental protection, low production cost and the like.
Description
Technical field
The present invention relates to a kind of dry-mixed mortar, specifically a kind of used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar.
Background technology
The plastering on inner walls dry-mixed mortar is the important component part in the construction work.Mainly prepare the plastering on inner walls dry-mixed mortar in the prior art by the following method: one, directly utilize natural semi-hydrated gypsum production; Two, be sintered into semi-hydrated gypsum with the desulfurization product dihydrate gypsum, levigate after, mix additives such as slow setting, water conservation and quartz sand etc. again and gather materials formulated.On the one hand, natural semi-hydrated gypsum is as a kind of natural resources, and its store content is fewer and feweri, on the other hand, utilizes industrially desulfurized by product two water desulphurization gypsum calcinations to become semi-hydrated gypsum, can cause environmental pollution again, has deficiencies such as auxiliary facility is huge, investment is big.The production cost of plastering on inner walls dry-mixed mortar is also high because of above-mentioned reason.
Simultaneously, China's industry by-product gypsum output is again a whole world maximum, has surpassed the year produced quantity (3,800 ten thousand tons) of the national plaster of paris.Especially the phosphatic fertilizer company phosphogypsum of piling up over the years, they can't help taking a large amount of soils, and destroy environment and pollute, and make us face huge pressure aspect comprehensive utilization of resources, the energy-saving and emission-reduction.
Summary of the invention
Technical assignment of the present invention is at above-mentioned the deficiencies in the prior art, and a kind of environmental protection and energy saving, used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar that cost is low are provided.
Technical assignment of the present invention is realized in the following manner: the used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar, make by the batch mixes of following weight proportion:
Chemical gypsum powder 20-30 part
Aggregate 50-65 part
Hydraulic cementing materials 10-15 part
Unslaked lime 10-15 part
Water-holding agent 0.02-1 part
Anti-fissuring agent 0.05-1 part.
Described chemical gypsum powder is fluorine gypsum powder, phosphogypsum powder or citric acid gypsum powder, and its fineness is 100～300 orders.
Described aggregate is the mixture of one or more materials in building sand, river sand, water-granulated slag and the building waste pulverizing fine particle that meets the GB/T14686-2001 standard-required, and its particle diameter is 0.2-3mm.
Described hydraulic cementing materials is ordinary Portland cement and/or slag cement.
Described water-holding agent can be a water-holding agent general in the prior art, as polyvinyl alcohol, polyoxygenated alkanes etc., preferably use the mixture of one or more materials in methylcellulose gum, hydroxypropylcellulose, hydroxyethylmethyl-cellulose and the treated starch (as: organic phosphate starch, cationic starch, anionic starch, vinyl cyanide starch etc.).
Described anti-fissuring agent can be an anti-fissuring agent general in the prior art, as fibrous magnesium silicate, steel fiber, glass fibre etc., preferably uses xylon or polyacrylonitrile fibre.
Though chemical gypsum itself does not have self-hardening property, can not produce intensity yet, the powdered chemical gypsum of certain fineness can carry out hydration reaction with the active mineral material under suitable shooting conditions, generate the hydraulicity hydrated product with certain intensity.The present invention adds certain hydraulic cementing materials, unslaked lime, water-holding agent, anti-fissuring agent etc. by suitable proportion, the dry-mixed mortar that is mixed with, make it fully carry out hydration reaction under certain conditions, generate water hardening hydrated product based on ettringite and hydrated calcium silicate.Their solubleness in water is very low.The early strength of calcination-free chemical gypsum dry mixed mortar depends on that the ettringite crystalline forms and development, and later strength depends on that the continuation of hydrated calcium silicate gel generates.
Used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar of the present invention compared with prior art has following outstanding beneficial effect:
(1) utilizes chemical gypsum to produce dry-mixed mortar, turn waste into wealth, reduce gypsum and pile up the soil amount that takies, have good social benefit, economic benefit and environmental benefit for major ingredient;
(2) need not in the production process chemical gypsum is calcined, energy-conserving and environment-protective, cost is low;
(3) various physical and chemical performances and construction requirement all can reach the requirement of relevant criterion.
Embodiment
Explain below with specific embodiment used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar of the present invention being done.
Embodiment one:
Prescription:
Phosphogypsum powder (100 order): 25Kg river sand (particle diameter 0.2-3mm): 60Kg
Ordinary Portland cement: 12Kg unslaked lime: 12Kg
Vltra tears: 0.1Kg xylon 0.1Kg
The preparation method:
Behind the various raw materials of above-mentioned prescription accurate measurement, mixing, positive mechanical formula stir and promptly get target product.
During construction, the said products is added water stir to slurry and promptly make used for plastering on inner walls calcination-free chemical gypsum building coating material (amount of water be mortar gross weight 25%).Its technical feature test result as shown in Table 1.
Table one:
| Interventions Requested | Unit | Measured data | The result |
| Presetting period | Min | 63 | Qualified |
| Final setting time | H | 7.3 | Qualified |
| Operable time | Min | 43 | Qualified |
| Water retention | ％ | 94 | Qualified |
| Folding strength | Mpa | 3.0 | Qualified |
| Ultimate compression strength | Mpa | 6.2 | Qualified |
| Shear bonding strength | mpa | 0.59 | Qualified |
Embodiment two:
Prescription:
Citric acid gypsum powder (200 order): 22Kg water-granulated slag (particle diameter 0.2-3mm): 63Kg
Slag cement: 14Kg unslaked lime: 14Kg
Methylcellulose gum: 0.5Kg polyacrylonitrile fibre: 0.5Kg
The preparation method:
Behind the various raw materials of above-mentioned prescription accurate measurement, mixing, positive mechanical formula stir and promptly get target product.
During construction, the said products is added water stir to slurry and promptly make used for plastering on inner walls calcination-free chemical gypsum building coating material (amount of water be mortar gross weight 20%).Its technical feature test result as shown in Table 2.
Table two:
| Interventions Requested | Unit | Measured data | The result |
| Presetting period | Min | 66 | Qualified |
| Final setting time | H | 7.7 | Qualified |
| Operable time | Min | 42 | Qualified |
| Water retention | ％ | 93 | Qualified |
| Folding strength | Mpa | 3.2 | Qualified |
| Ultimate compression strength | Mpa | 6.0 | Qualified |
| Shear bonding strength | mpa | 0.55 | Qualified |
Embodiment three:
Prescription:
Fluorine gypsum powder (280 order): 28Kg builds sand (particle diameter 0.2-3mm): 55Kg
Slag cement: 13Kg unslaked lime: 13Kg
Organic phosphate starch: 0.7Kg glass fibre: 0.7Kg
The preparation method:
Behind the various raw materials of above-mentioned prescription accurate measurement, mixing, positive mechanical formula stir and promptly get target product.
During construction, the said products is added water stir to slurry and promptly make used for plastering on inner walls calcination-free chemical gypsum building coating material (amount of water be mortar gross weight 30%).Its technical feature test result as shown in Table 3.
Table three:
| Interventions Requested | Unit | Measured data | The result |
| Presetting period | Min | 61 | Qualified |
| Final setting time | H | 7.5 | Qualified |
| Operable time | Min | 38 | Qualified |
| Water retention | ％ | 95 | Qualified |
| Folding strength | Mpa | 3.0 | Qualified |
| Ultimate compression strength | Mpa | 6.3 | Qualified |
| Shear bonding strength | mpa | 0.56 | Qualified |
Claims (4)
1. used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar, it is characterized in that: the batch mixes by following weight proportion is made:
Described chemical gypsum powder is fluorine gypsum powder, phosphogypsum powder or citric acid gypsum powder;
Described hydraulic cementing materials is ordinary Portland cement and/or slag cement;
Described water-holding agent is the mixture of one or more materials in methylcellulose gum, hydroxypropylcellulose, hydroxyethylmethyl-cellulose and the treated starch;
Described anti-fissuring agent is xylon or polyacrylonitrile fibre.
2. used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar according to claim 1 is characterized in that: the fineness of described chemical gypsum powder is 100～300 orders.
3. used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar according to claim 1 is characterized in that: described aggregate is pulverized the mixture of one or more materials in the fine particle for building sand, river sand, water-granulated slag and building waste.
4. used for plastering on inner walls calcination-free chemical gypsum dry mixed mortar according to claim 3 is characterized in that: the particle diameter of described aggregate is 0.2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100144878A CN101549985B (en) | 2009-02-27 | 2009-02-27 | Calcination-free chemical gypsum dry mixed mortar used for plastering on inner walls |
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|---|---|---|---|
| CN2009100144878A CN101549985B (en) | 2009-02-27 | 2009-02-27 | Calcination-free chemical gypsum dry mixed mortar used for plastering on inner walls |
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| Publication Number | Publication Date |
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| CN101549985A CN101549985A (en) | 2009-10-07 |
| CN101549985B true CN101549985B (en) | 2011-08-24 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830682B (en) * | 2010-05-14 | 2012-09-05 | 武汉理工大学 | Plastering mortar prepared by using construction wastes and phosphogypsum |
| CN102093021B (en) * | 2010-12-28 | 2013-05-22 | 济南丞华环保科技发展中心 | Slag micro-powder dry mixed mortar |
| CN105967735A (en) * | 2016-03-29 | 2016-09-28 | 蚌埠华东石膏有限公司 | Light-resistant yellowing-resistant insulation building gypsum powder and preparation method thereof |
| CN105967620A (en) * | 2016-03-29 | 2016-09-28 | 蚌埠华东石膏有限公司 | Insulation building gypsum powder with low water requirement and high strength and preparation method thereof |
| CN105967622A (en) * | 2016-05-09 | 2016-09-28 | 马振义 | Insulation mortar prepared by compounding phosphogypsum and fluorgypsum as well as preparation method thereof |
| CN106699090A (en) * | 2016-11-16 | 2017-05-24 | 上海漕源新型建材有限公司 | Interior wall dry powder mortar |
| CN108117356A (en) * | 2017-12-21 | 2018-06-05 | 铜陵化学工业集团有限公司 | A kind of industrial waste high intensity dry-mixed mortar |
| CN110510971A (en) * | 2019-08-28 | 2019-11-29 | 贵州福泉蓝图住宅产业化有限公司 | One kind exempting from calcined phosphogypsum adhesive mortar and preparation method thereof |
| CN111646770A (en) * | 2020-05-22 | 2020-09-11 | 贵州开磷磷石膏综合利用有限公司 | Phosphogypsum-based exhaust smoke pipe for kitchen and preparation method thereof |
| CN116462476A (en) * | 2023-04-06 | 2023-07-21 | 石河子大学 | Calcination-free dihydrate gypsum-based waterproof and anti-cracking plastering mortar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033123A (en) * | 2007-02-05 | 2007-09-12 | 孙晋东 | Dry powder mortar for plastering gypsum wall |
| CN101337802A (en) * | 2008-08-15 | 2009-01-07 | 同济大学 | Large-doping-amount slag powder dry mixing mortar using desulphurization gypsum as excitant |
-
2009
- 2009-02-27 CN CN2009100144878A patent/CN101549985B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033123A (en) * | 2007-02-05 | 2007-09-12 | 孙晋东 | Dry powder mortar for plastering gypsum wall |
| CN101337802A (en) * | 2008-08-15 | 2009-01-07 | 同济大学 | Large-doping-amount slag powder dry mixing mortar using desulphurization gypsum as excitant |
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| CN101549985A (en) | 2009-10-07 |
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Owner name: JINAN CHENGHUA ENVIRONMENTAL TECHNOLOGY DEVELOPMEN Free format text: FORMER NAME: JINAN HIGH-TECH AREA INDUSTRIAL WASTE UTILIZATION RESEARCH + DEVELOPMENT CENTER |
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Address after: 250101 G, North Zone, University Science Park, Ji'nan hi tech Zone, Shandong Patentee after: Jinan Chenghua Environmental Technology Development Center Address before: 250101 G, North Zone, University Science Park, Ji'nan hi tech Zone, Shandong Patentee before: Jinan High-tech Area Industrial Waste Utilization Research & Development Center |
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Effective date of registration: 20160713 Address after: 250101 Shandong province Ji'nan City hi tech Development Zone, No. 750 Hua Road No. 8 Building 4 unit 301 room Patentee after: Shandong Cheng Hua enterprise Klc Holdings Ltd Address before: 250101 G, North Zone, University Science Park, Ji'nan hi tech Zone, Shandong Patentee before: Jinan Chenghua Environmental Technology Development Center |